Reading Thermals Guide

How Do Pilots Find Invisible Air?

Thermals cannot be seen — but their signs can. Reading thermals means assembling clues: terrain, sun, wind, clouds, birds and the behaviour of other gliders, then testing the hypothesis with your own wing.

Over Babadağ this skill is generously rewarded: the mountain produces so many well-marked thermals that it is one of the best places in the world to practise.

The Clues, in Order of Reliability

What experienced pilots watch:

• Other gliders climbing — the most honest sign in the sky
• Birds circling without flapping — vultures and swifts mark cores precisely
• Growing cumulus clouds — a fresh, crisp edge means an active thermal below
• Sun-facing terrain — dark rock, dry slopes and wind-sheltered bowls trigger first
• Wing feedback — a surge, a tug on one side: the glider itself reports lift before instruments do

Centring: Staying in the Core

Finding lift is half the job; staying in it is the other half. The classic rule: shift your circle toward the side where the climb is strongest — widen when lift improves, tighten when it fades.

Babadağ cores are usually wide enough for relaxed centring, which is why tandem pilots here can thermal smoothly even with passengers aboard.

FAQ – Reading Thermals